/*
 * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
 *
 *  embedded brains GmbH
 *  Dornierstr. 4
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */

#ifdef HAVE_CONFIG_H
  #include "config.h"
#endif

#include <sha256.h>
#include <sha512.h>
#include <stdio.h>
#include <string.h>

#include "tmacros.h"

const char rtems_test_name[] = "SHA";

static const char *const test_vectors[] = {
  "abc",
  "",
  "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
  "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
    "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"
};

static const unsigned char
test_sha256_results[RTEMS_ARRAY_SIZE(test_vectors)][32] = {
  {
    0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea,
    0x41, 0x41, 0x40, 0xde, 0x5d, 0xae, 0x22, 0x23,
    0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c,
    0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad
  }, {
    0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14,
    0x9a, 0xfb, 0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24,
    0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c,
    0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55
  }, {
    0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8,
    0xe5, 0xc0, 0x26, 0x93, 0x0c, 0x3e, 0x60, 0x39,
    0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff, 0x21, 0x67,
    0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1
  }, {
    0xcf, 0x5b, 0x16, 0xa7, 0x78, 0xaf, 0x83, 0x80,
    0x03, 0x6c, 0xe5, 0x9e, 0x7b, 0x04, 0x92, 0x37,
    0x0b, 0x24, 0x9b, 0x11, 0xe8, 0xf0, 0x7a, 0x51,
    0xaf, 0xac, 0x45, 0x03, 0x7a, 0xfe, 0xe9, 0xd1
  }
};

static const unsigned char
test_sha512_results[RTEMS_ARRAY_SIZE(test_vectors)][64] = {
  {
    0xdd, 0xaf, 0x35, 0xa1, 0x93, 0x61, 0x7a, 0xba,
    0xcc, 0x41, 0x73, 0x49, 0xae, 0x20, 0x41, 0x31,
    0x12, 0xe6, 0xfa, 0x4e, 0x89, 0xa9, 0x7e, 0xa2,
    0x0a, 0x9e, 0xee, 0xe6, 0x4b, 0x55, 0xd3, 0x9a,
    0x21, 0x92, 0x99, 0x2a, 0x27, 0x4f, 0xc1, 0xa8,
    0x36, 0xba, 0x3c, 0x23, 0xa3, 0xfe, 0xeb, 0xbd,
    0x45, 0x4d, 0x44, 0x23, 0x64, 0x3c, 0xe8, 0x0e,
    0x2a, 0x9a, 0xc9, 0x4f, 0xa5, 0x4c, 0xa4, 0x9f
  }, {
    0xcf, 0x83, 0xe1, 0x35, 0x7e, 0xef, 0xb8, 0xbd,
    0xf1, 0x54, 0x28, 0x50, 0xd6, 0x6d, 0x80, 0x07,
    0xd6, 0x20, 0xe4, 0x05, 0x0b, 0x57, 0x15, 0xdc,
    0x83, 0xf4, 0xa9, 0x21, 0xd3, 0x6c, 0xe9, 0xce,
    0x47, 0xd0, 0xd1, 0x3c, 0x5d, 0x85, 0xf2, 0xb0,
    0xff, 0x83, 0x18, 0xd2, 0x87, 0x7e, 0xec, 0x2f,
    0x63, 0xb9, 0x31, 0xbd, 0x47, 0x41, 0x7a, 0x81,
    0xa5, 0x38, 0x32, 0x7a, 0xf9, 0x27, 0xda, 0x3e
  }, {
    0x20, 0x4a, 0x8f, 0xc6, 0xdd, 0xa8, 0x2f, 0x0a,
    0x0c, 0xed, 0x7b, 0xeb, 0x8e, 0x08, 0xa4, 0x16,
    0x57, 0xc1, 0x6e, 0xf4, 0x68, 0xb2, 0x28, 0xa8,
    0x27, 0x9b, 0xe3, 0x31, 0xa7, 0x03, 0xc3, 0x35,
    0x96, 0xfd, 0x15, 0xc1, 0x3b, 0x1b, 0x07, 0xf9,
    0xaa, 0x1d, 0x3b, 0xea, 0x57, 0x78, 0x9c, 0xa0,
    0x31, 0xad, 0x85, 0xc7, 0xa7, 0x1d, 0xd7, 0x03,
    0x54, 0xec, 0x63, 0x12, 0x38, 0xca, 0x34, 0x45
  }, {
    0x8e, 0x95, 0x9b, 0x75, 0xda, 0xe3, 0x13, 0xda,
    0x8c, 0xf4, 0xf7, 0x28, 0x14, 0xfc, 0x14, 0x3f,
    0x8f, 0x77, 0x79, 0xc6, 0xeb, 0x9f, 0x7f, 0xa1,
    0x72, 0x99, 0xae, 0xad, 0xb6, 0x88, 0x90, 0x18,
    0x50, 0x1d, 0x28, 0x9e, 0x49, 0x00, 0xf7, 0xe4,
    0x33, 0x1b, 0x99, 0xde, 0xc4, 0xb5, 0x43, 0x3a,
    0xc7, 0xd3, 0x29, 0xee, 0xb6, 0xdd, 0x26, 0x54,
    0x5e, 0x96, 0xe5, 0x5b, 0x87, 0x4b, 0xe9, 0x09
  }
};

static void print_result(const unsigned char *r, size_t n)
{
  size_t i;

  for (i = 0; i < n; ++i) {
    if (i == 0) {
      /* Do nothing */
    } else if (i % 32 == 0) {
      printf("\n");
    } else if (i % 8 == 0) {
      printf(" ");
    }

    printf("%02x", r[i]);
  }

  printf("\n");
}

static void test_sha256(void)
{
  size_t i;

  printf("test SHA256\n");

  for (i = 0; i < RTEMS_ARRAY_SIZE(test_vectors); ++i) {
    SHA256_CTX ctx;
    unsigned char r[32];
    const char *s = test_vectors[i];

    SHA256_Init(&ctx);
    SHA256_Update(&ctx, s, strlen(s));
    SHA256_Final(r, &ctx);

    print_result(&r[0], sizeof(r));

    rtems_test_assert(
      memcmp(&r[0], &test_sha256_results[i][0], sizeof(r)) == 0
    );
  }
}

static void test_sha512(void)
{
  size_t i;

  printf("test SHA512\n");

  for (i = 0; i < RTEMS_ARRAY_SIZE(test_vectors); ++i) {
    SHA512_CTX ctx;
    unsigned char r[64];
    const char *s = test_vectors[i];

    SHA512_Init(&ctx);
    SHA512_Update(&ctx, s, strlen(s));
    SHA512_Final(r, &ctx);

    print_result(&r[0], sizeof(r));

    rtems_test_assert(
      memcmp(&r[0], &test_sha512_results[i][0], sizeof(r)) == 0
    );
  }
}

static void Init(rtems_task_argument arg)
{
  TEST_BEGIN();

  test_sha256();
  test_sha512();

  TEST_END();
  rtems_test_exit(0);
}

#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER

#define CONFIGURE_MAXIMUM_TASKS 1

#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION

#define CONFIGURE_RTEMS_INIT_TASKS_TABLE

#define CONFIGURE_INIT

#include <rtems/confdefs.h>
